122 entries under thin topic. ×

1
drawn(adjective, pale, sickly-looking)
1
emasculated(adjective, weak, delicate, shaky)
1
etiolated(adjective, weak, delicate, shaky)
1
flabby(adjective, weak, delicate, loose)
1
gauzy(weak, slight, feeble, tacky)
1
gossamer(weak, slight, feeble, tacky)
1
house of cards(expression, weak, slight, feeble)
1
in bad shape(expression, adjective, idiom, pale)
1
inadequate(adjective, weak, slight, delicate)
1
incompetent(adjective, weak, delicate, shaky)
1
ineffectual(adjective, weak, delicate, shaky)
1
inefficient(adjective, weak, delicate, feeble)
1
insufficient(adjective, weak, delicate, shaky)
1
meager(weak, slight, feeble, frail)
1
mean(weak, down, ill, feeble)
1
not healthy(expression, mean, weak, green)
1
off-color(weak, ill, sick, feeble)
1
out of action(expression, idiom, weak, sick)
1
out of gas(expression, adjective, idiom, weak)
1
out of shape(expression, adjective, idiom, weak)
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APASmart Define. (2015). infirm thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/infirm/thesaurus/synonyms
ChicagoSmart Define. 2015. "infirm thesaurus" https://smartdefine.org/infirm/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, infirm thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/infirm/thesaurus/synonyms>.
MLASmart Define. "infirm thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/infirm/thesaurus/synonyms>